ba da gudummawa.auth
Idan an share ForeignKey a Django, duk wani bayanan da ke da alaƙa a cikin bayanan za a share su ma.
-models foreign-key cascade I have a model with a ForeignKey to another model. When the referenced model is deleted, I want the ForeignKey to be set to NULL. How can I do that? Read this post in context
Django - how to get all objects from one table which are not in another table? django I have two models: class Product(models.Model): name = models.CharField(max_length=255) price = models.DecimalField(decimal_places=2, max_digits=10) class OrderItem(models.Model): product = models.ForeignKey('Product', on_delete=models.CASCADE) quantity = models.IntegerField() def __str__(self): return self.product How can i get all products which are not in OrderItem? Read this post in context
Django - how to create an object with a foreign key that doesn't exist yet django I am trying to create an object with a foreign key that doesn't exist yet (the user). The user will be created after the object is created and then it will be assigned as the foreign key for the object later on when it exists (in another view). This is my code: def add_to_cart(request, pk): product = get_object_or_404(Product, pk=pk) orderitem, created = OrderItem.objects ... Read this post in context
Django – yadda ake ƙirƙirar abu tare da maɓalli na waje wanda babu shi har yanzu django Ina ƙoƙarin ƙirƙirar abu tare da maɓalli na waje wanda ba ya wanzu har yanzu (mai amfani). Za a ƙirƙiri mai amfani bayan an ƙirƙira abin sannan a sanya shi a matsayin maɓalli na waje na abin daga baya idan ya kasance (a wani ra'ayi). Wannan shine lambara: def add_to_cart(buƙata, pk): samfur = samun_object_or_404(Samfur, pk=pk) tsari, ƙirƙira = OrderItem.objects… Karanta wannan post a mahallin
Django – yadda ake ƙirƙirar abu tare da maɓalli na waje wanda babu shi har yanzu django Ina ƙoƙarin ƙirƙirar abu tare da maɓalli na waje wanda ba ya wanzu har yanzu (mai amfani). Za a ƙirƙiri mai amfani bayan an ƙirƙira abin sannan a sanya shi a matsayin maɓalli na waje na abin daga baya idan ya kasance (a wani ra'ayi). Wannan shine lambara: def add_to_cart(buƙata, pk): samfur = samun_object_or_404(Samfur, pk=pk) tsari, ƙirƙira = OrderItem.objects… Karanta wannan post a mahallin
Ta yaya zan iya sa Django ya yi amfani da nawa al'ada kalmar sirri hashing algorithm? django Ina son Django ya yi amfani da nawa kalmar sirri hashing algorithm maimakon tsoho. Ta yaya zan iya yin wannan? Karanta wannan sakon a cikin mahallin
Menene ForeignKey
A ForeignKey filin samfuri ne wanda ke nuni da ƙira a cikin wani ƙirar.
on_deete zažužžukan
Akwai 'yan zaɓuɓɓuka daban-daban don sarrafa gogewa a Django. Zaɓin mafi sauƙi shine amfani da aikin share()
share(abu)
Wannan zai share abu daga rumbun adana bayanai da duk wani bayanan da ke da alaƙa. Idan abun misali ne, zai kuma bata duk wani fage mai alaƙa.
Wani zaɓi shine a yi amfani da aikin halaka ():
